body , html
  line-height :1
  font-weight :200
  font-family :'Ping SC','STHeitiSC-Light','Helvetival-Light',arial,sans-serif

.clearfix
  display :inline-block
  &:after
    display :block
    content :"."
    height :0
    line-height :0
    clear :both
    visibility :hidden
    
    
@media (-webkit-min-device-pixel-ratio: 1.5),(min-device-aspect-ratio: 1.5) 
  .border-1px
  &::after
    -webkit-transform : scaleY(0.7)
      transform : scaleY(0.7)
	  
@media (-webkit-min-device-pixel-ratio: 2),(min-device-aspect-ratio: 2)
  .border-1px
    &::after    
      -webkit-transform : scaleY(0.5)
      transform : scaleY(0.5)
